Rh disease RH factor is a protein on some people's red blood cells. Learn how RH disease affects your baby and how to prevent it.
Neonatal Abstinence Syndrome (NAS) March of Dimes leads the fight for the health of all moms and babies. We use research, advocacy, and education to give every baby the best possible start.
Smoking during pregnancy Smoking during pregnancy can cause problems like premature birth and birth defects. If you need help to quit smoking, tell your health care provider.